10 Causes of Hemorrhoids
Cause #4: Straining
Straining can be defined as forcing or making a strenuous and unusually big effort. In this context, straining to produce a bowel movement occurs when one increases the intraabdominal pressure to help push out the feces.
This increased pressure decreases venous return in the perianal area, resulting in engorgement of hemorrhoids. It has also been thought to contribute to thrombosis of already existing hemorrhoids.
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